Dengue virus envelope protein and precursor membrane protein (E and prM (or prM/E complex))

The **dengue virus structural proteins prM (precursor membrane) and E (envelope)** are essential components on the virus surface. The E protein mediates viral entry by binding host cell receptors and driving membrane fusion, and is the major target of neutralizing antibodies and vaccine-induced immunity. The prM protein acts as a chaperone during assembly, stabilizing the E protein and preventing premature fusion during transport by masking the fusion loop. As the virion matures in the secretory pathway, prM is cleaved by furin to yield M protein, allowing conformational changes in E required for infectivity. The prM/E complex is a highly validated therapeutic and vaccine target, with both proteins being antigenic and critical for infection. Drugs or antibodies that disrupt E function, prevent its conformational change, or target the prM/E interface may block viral maturation or entry[1][2][3][4][5]. The structure, functions, and interactions of these proteins are highly conserved across all four dengue virus serotypes (1–4), making them suitable for broad-spectrum therapeutic strategies.

Other names

prM/E complexDengue envelope protein (E)Dengue precursor membrane protein (prM)DENV E protein and prM proteinFlavivirus E-prM complex

Inhibition of E-mediated membrane fusion Neutralization of virus by blocking E/prM conformational changes Antibody-mediated inhibition of viral entry or fusion Small molecules preventing structural rearrangement necessary for maturation and fusion